Increases validity as it reduces the impact of anomalous results
Validity and reliability
The only test of infantattachment used in different countries.
Genersiablity to whole country
Variations in cultures. For example, in Tokyo there was more secure attachments whereas in rural Japan there was more insecureresistant attachments.
Not representative of the whole culture
Some sample sizes were small. This lowers the validity and conclusions that can be drawn.
Culturally biased
E.g. in Germany, lack of separation anxiety and pleasure in reunion may be seen as independence rather than avoidance. This means that the study suffers from imposed etic.